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    <h1 class="topictitle1">PPL Compatibility</h1>

    
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            <p>Classes <samp class="codeph">critical_section</samp> and <samp class="codeph">reader_writer_lock</samp> exist for compatibility with the Microsoft Parallel Patterns Library (PPL). They do not follow all of the conventions of other mutexes in Intel&reg; Threading Building Blocks.</p>
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<div class="parentlink"><strong>Parent topic:</strong>&nbsp;<a href="../../reference/synchronization.htm">Synchronization</a></div>
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<li class="ulchildlink"><a href="../../reference/synchronization/ppl_compatibility/critical_section.htm">critical_section</a><br>
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<li class="ulchildlink"><a href="../../reference/synchronization/ppl_compatibility/reader_writer_lock_cls.htm">reader_writer_lock Class</a><br>
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